* {
  box-sizing: border-box;
  font-size: 28px;
}
.heard-contatiner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background-color: #21b97a;
}
.heard-contatiner .van-nav-bar__title {
  font-size: 36px;
  color: #fff;
}
.heard-contatiner .van-icon-arrow-left {
  color: #fff;
}
